I work on some pretty complex projects and the templates we use have hundreds of tasks that are linked together using the predecessor column. Each project is slightly different and we usually need to delete certain tasks to refine the template into a new project plan.
It can be a pretty big pain to delete some of the tasks because I don't have an easy way to see if the task has anything as a dependency and, after I delete the task, whatever had it as a predecessor will now show #REF.
This leaves me scrambling to figure out which task it used to be linked to and attempting to reassign the task to something else that might not make the most sense.
My ideal solution would be a column that told me the opposite of what the predessor column shows now... but I would settle for a function that told me if the task I was looking at had any dependencies attached to it at all.